The surface formed by the revolution of a catenary about the -axis; it is a minimal surface. The catenoid is the form realized by a soap bubble "stretched" over two wire discs the planes of which are perpendicular to the line joining their centres (see Fig.).
|[a1]||C.C. Hsiung, "A first course in differential geometry" , Wiley (Interscience) (1981)|
Catenoid. Encyclopedia of Mathematics. URL: http://www.encyclopediaofmath.org/index.php?title=Catenoid&oldid=16593